The Approximate Capacity of the Many-to-One and One-to-Many Gaussian Interference Channels

被引：150

作者：

Bresler, Guy ^{[1
]}

Parekh, Abhay ^{[1
]}

Tse, David N. C. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 2010年 / 56卷 / 09期

基金：

美国国家科学基金会;

关键词：

Capacity; interference alignment; interference channel; lattice codes; multiuser channels; ALIGNMENT;

D O I：

10.1109/TIT.2010.2054590

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Recently, Etkin, Tse, and Wang found the capacity region of the two-user Gaussian interference channel to within 1 bit/s/Hz. A natural goal is to apply this approach to the Gaussian interference channel with an arbitrary number of users. We make progress towards this goal by finding the capacity region of the many-to-one and one-to-many Gaussian interference channels to within a constant number of bits. The result makes use of a deterministic model to provide insight into the Gaussian channel. The deterministic model makes explicit the dimension of signal level. A central theme emerges: the use of lattice codes for alignment of interfering signals on the signal level.

引用

页码：4566 / 4592

页数：27

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